will israel send troops in? will there be a truce? christiane amanpour in jerusalem. >>> back home, the first images of the woman at the center of the petraeus scandal. paula broadwell, out with her husband, arm in arm. now under greater scrutiny as investigators search her computers for secrets. >>> it's here. the christmas shopping season about to begin. and tonight, inside the battle plan for black friday. the $78 flat screen? the deals they hope catch your eye. >>> and backstage. 40 years ago tonight, america's oldest teenager with that brand new idea, turning a stage over to the next generation. >>> good evening on this sunday night. and as we come on the air this evening, the situation in the middle east reaching a tipping point. will there be all-out war between the israelis and hamas in gaza? or will frantic, behind-the-scenes negotiations, talks in neighboring egypt, help bring an 11th-hour truce? on the ground, the casualties are mounting tonight. in gaza, women, children among the dead as the israelis were trying to target